Mower.



G. P. HELFRICH.

MowEa, APPLICATION FILED AU(.20| 19H.

1,275,253, Patented Aug. 13, 191s.

w/NEssEs INI/Hymn @asian f? #ff/'mi2 @KM-M B m me: nanars Perses ce.. P-\.murno.. wasnmarpu. u. n

eUsTAv r. HELrnIoi-r, or' New YORK, Y.

" ivrownn..."v

Specification of Letters ZLatent. Patented Allg. 13, 1918.

Application led August 20, 1917. Serial N o. 187,111.y

To all whom t may concern.'

Be itlmown that; I, GUsrAv l?. HnLrRrcH, a citizen of the United States, and a resident of the city of New York, borough of Bronx, inthe county of Bronx and State of New York, have invented a new and Improved Mower, of which the vfollowing is a full, clear, and exact description.

This invention relates to "mowing machines, and in particular to what are commonly termed lawn mowers, though the construction may be utilized in a plurality of different types of mowers without departing from the spirit of the invention. v

The object in view is to provide a mowing machine having a plurality of blades and a simple, strong mechanism for moving said blades in a circle so that the cutting movement will be toward the front and upwardly.

Another object `in view is to provide a i mowing machine having a plurality of cutters moving in a circle, a' driving mechanism therefor which automatically holds the blades in a horizontal plane as they are moved whereby the edge of the blades may,

strike squarely the matter to be cut.v

In the accompanying drawings:

Figure 1 is a longitudinal vertical section through a mowing machine disclosing the present invention, same being approximately i on the line l-l-of Fig. 2.

34 arranged incasing 2 which has rigidly se- Fig. 2 is a top plan view of a mowing machine embodying the invention, certain parts being broken away for better illustrating the structure.

Referring to the accompanying drawings by numerals, lindicates aV handle of any desired kind which may be connected in any suitable manner to casing2, carrying a large or master gear wheel 3, and a power shaft 4, said power shaft being'connected with traction wheels 5v vand 6 throughsuitable pawl and ratchet clutches? and *8. The master vy n 2. Adevlce of the characterdescribed comj gear wheel 31meshes continually with pinion cured thereto or formed integral therewith, a

pinion 27 which meshes with an idle pinionY 28, said idle pinion in turn meshing with a driving pinion 29, said drivingpinion being rigidly secured to shaft 30, which shaft-has' rigidly Secured thereto Van armBl carrying i the cutting blade. The pinions 28 and 29 are carried by an arm 32 which is rigidly secured to shaft 33, said shaft extending through the casing 2 and being rotated by the pinion 34 meshing with a master gear 3. p i

Bythis construction and arrangement whenever the mower is moved lforwardly duringthev cutting operation pinion 3 will be rotated and arm 32 will be rotated. As rarm 32 is rotated the idle pinion 28 will moveciate parts, but itwill be evident that theV shaft 33 extends from the pinion 34 and operates a 'similarmechanism on the other side so that there will be utilized two cutting blades. A depth roller 26 is provided which Vis bolted to the casing2 in any suitable manner, and if desired may be providedwith slots for accommodating the bolts so as to permit any desired adjustment. Y

. What I .claim is: y, i

1. A device of the character described comprising `a driving shaft, a pinion-connected with said shaft, a master gear-meshing with n vthe pinion for rotating theV same, an arm rigidly secured to said driving shaft, a sta-` tionary pinion surrounding said driving shaft, an idler pinion rotatably mounted on said arm and meshing with said stationary v pinion, a rotatable shaft arranged on said arm, and a pinion rigidly securedl to said, rotatable shafton said arm, saidlast menvtioned pinion meshing with said idler pinion, whereby when saidl arm isrotated the idler pinion will move around the stationary pinion and thereby communicating motion to the last mentionedl pinion.

prisinga master gear,a,pinion meshing with said gear, a driving-shaft rigidlysecured to said-pinion, a'casing acting as a journal 'for said driving shaft', a stationary pinion mounted on said casing and arranged so that the centerV will be coincident kwith the center Qfsaid driving shaft, an arm having .one l l roo Y mounted on said arm and meshing with said end rigidly secured to said driving shaft pinion, and means rigidly secured to said so as to be rotated thereby, an idler pinion rotatable shaft for supporting a eutter,'

whereby when said arm is rotated said supporting means will be held continually in a 10 Vertical-position this moving in a circle.

` GUSTAV P. HELFRICH.

stationary pinion, a rotatable shaft mounted on said arm, a pinion rigidly secured to said rotatable shaft and meshing With said idler iive cents eaeh, 'by addressing the Commissioner of Patents,

Copies of this patent may be obtained for Washington, D. E. 

